Question

2000 Jaguar S-Type 4.0L with engine code P0403

Answer 1

HI there

This code is related to the EGR function and normally isn't a bank 1 or bank 2 error. In most cases, the EGR tube is plugged and causes the issue. Here is some info on the code for you

P0403 - Exhaust Gas Recirculation Circuit Malfunction
Read more: https://www.autocodes.com/p0403.html